Sciweavers

16 search results - page 3 / 4
» Distortion lower bounds for line embeddings
Sort
View
ICIP
2006
IEEE
13 years 11 months ago
Public Key Watermarking for Reversible Image Authentication
In this paper, we propose a new public key watermarking scheme for reversible image authentication where if the image is authentic, the distortion due to embedding can be complete...
Sang-Kwang Lee, Young-Ho Suh, Yo-Sung Ho
SODA
2008
ACM
89views Algorithms» more  SODA 2008»
13 years 6 months ago
Earth mover distance over high-dimensional spaces
The Earth Mover Distance (EMD) between two equalsize sets of points in Rd is defined to be the minimum cost of a bipartite matching between the two pointsets. It is a natural metr...
Alexandr Andoni, Piotr Indyk, Robert Krauthgamer
STACS
2007
Springer
13 years 11 months ago
Hard Metrics from Cayley Graphs of Abelian Groups
: Hard metrics are the class of extremal metrics with respect to embedding into Euclidean spaces: they incur Ω(logn) multiplicative distortion, which is as large as it can possib...
Ilan Newman, Yuri Rabinovich
COMGEO
2012
ACM
12 years 1 months ago
Point-set embeddings of plane 3-trees
A straight-line drawing of a plane graph G is a planar drawing of G, where each vertex is drawn as a point and each edge is drawn as a straight line segment. Given a set S of n poi...
Rahnuma Islam Nishat, Debajyoti Mondal, Md. Saidur...
CRYPTO
2008
Springer
75views Cryptology» more  CRYPTO 2008»
13 years 7 months ago
New Efficient Attacks on Statistical Disclosure Control Mechanisms
The goal of a statistical database is to provide statistics about a population while simultaneously protecting the privacy of the individual records in the database. The tension be...
Cynthia Dwork, Sergey Yekhanin